See the domains Google treats as sources for entity facts.
Trusted sources for entity facts
Dataset: 62,202 isReference domains |
entities
Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.
Where these domains come from
1,738,093
Domains monitored
62,202
isReference domains
3.58% qualify
23,295,240
URLs monitored
75,529,125
Entities tracked
💡 Even Small Niche Domains Have isReference Authority
Examples from our dataset (December 2025):
| kalicube.com | 21 entities |
| searchengineland.com | 11 entities |
| jasonbarnard.com | 86 entities |
| searchenginejournal.com | 270 entities |
| entrepreneur.com | 1,292 entities |
| forbes.com | 2,823 entities |
Your niche-specific domains may have similar authority in your category.
Top 100 isReference Domains for All Entity Types
| Rank | Domain | Entity Count |
|---|---|---|
| 1 | wikipedia.org | 2,592,180 |
| 2 | linkedin.com | 153,630 |
| 3 | instagram.com | 99,349 |
| 4 | x.com | 63,938 |
| 5 | facebook.com | 62,483 |
| 6 | legacy.com | 61,278 |
| 7 | namu.wiki | 34,964 |
| 8 | google.com | 31,139 |
| 9 | youtube.com | 29,342 |
| 10 | britannica.com | 24,390 |
| 11 | crunchbase.com | 24,273 |
| 12 | dictionary.com | 24,064 |
| 13 | reddit.com | 20,215 |
| 14 | amazon.com | 18,237 |
| 15 | fandom.com | 16,515 |
| 16 | letterboxd.com | 12,951 |
| 17 | microsoft.com | 11,648 |
| 18 | wiktionary.org | 9,976 |
| 19 | apple.com | 9,638 |
| 20 | rottentomatoes.com | 8,193 |
| 21 | justwatch.com | 7,506 |
| 22 | imdb.com | 7,410 |
| 23 | yahoo.com | 6,710 |
| 24 | cambridge.org | 6,411 |
| 25 | shopee.co.id | 6,093 |
| 26 | house.gov | 6,035 |
| 27 | indeed.com | 5,952 |
| 28 | espn.com | 5,892 |
| 29 | quora.com | 5,771 |
| 30 | nhl.com | 5,689 |
| 31 | tiktok.com | 5,459 |
| 32 | bbc.co.uk | 5,222 |
| 33 | genius.com | 4,994 |
| 34 | epicgames.com | 4,837 |
| 35 | hbomax.com | 4,826 |
| 36 | shopee.ph | 4,765 |
| 37 | billboard.com | 4,512 |
| 38 | history.com | 4,297 |
| 39 | vocabulary.com | 4,251 |
| 40 | inc.com | 4,174 |
| 41 | forbes.com | 4,054 |
| 42 | deel.com | 4,045 |
| 43 | wikiwand.com | 3,939 |
| 44 | dictionary.net | 3,849 |
| 45 | time.is | 3,842 |
| 46 | bloomberg.com | 3,746 |
| 47 | bing.com | 3,720 |
| 48 | pornhub.com | 3,636 |
| 49 | thesaurus.com | 3,644 |
| 50 | bbc.com | 3,549 |
| 51 | github.com | 3,546 |
| 52 | nfl.com | 3,488 |
| 53 | uk.com | 3,422 |
| 54 | merriam-webster.com | 3,387 |
| 55 | nintendo.com | 3,376 |
| 56 | google.co.il | 3,359 |
| 57 | temu.com | 3,310 |
| 58 | independent.co.uk | 3,087 |
| 59 | loc.gov | 3,025 |
| 60 | spotify.com | 3,029 |
| 61 | entrepreneur.com | 2,944 |
| 62 | nih.gov | 2,927 |
| 63 | si.edu | 2,919 |
| 64 | nba.com | 2,907 |
| 65 | mubi.com | 2,888 |
| 66 | soundcloud.com | 2,878 |
| 67 | goodreads.com | 2,805 |
| 68 | trustpilot.com | 2,759 |
| 69 | shopee.sg | 2,630 |
| 70 | wordpress.org | 2,577 |
| 71 | gov.uk | 2,560 |
| 72 | theguardian.com | 2,566 |
| 73 | researchgate.net | 2,567 |
| 74 | delta.com | 2,529 |
| 75 | steampowered.com | 2,505 |
| 76 | reuters.com | 2,480 |
| 77 | google.com.br | 2,483 |
| 78 | ms-ci.co.il | 2,468 |
| 79 | amazon.co.uk | 2,468 |
| 80 | usnews.com | 2,443 |
| 81 | famousbirthdays.com | 2,406 |
| 82 | hosting.com | 2,337 |
| 83 | aliexpress.com | 2,340 |
| 84 | stackoverflow.com | 2,341 |
| 85 | indigo.ca | 2,302 |
| 86 | public.com | 2,279 |
| 87 | ebay.com | 2,263 |
| 88 | the-independent.com | 2,266 |
| 89 | zhihu.com | 2,250 |
| 90 | disney.com | 2,250 |
| 91 | nsw.gov.au | 2,243 |
| 92 | xhamster.com | 2,242 |
| 93 | upenn.edu | 2,213 |
| 94 | pinterest.com | 2,213 |
| 95 | gog.com | 2,192 |
| 96 | grammy.com | 2,192 |
| 97 | watch.plex.tv | 2,180 |
| 98 | nature.com | 2,102 |
| 99 | nytimes.com | 2,104 |
| 100 | wikidata.org | 2,059 |
| 101+ | 62,102 additional niche-specific domains in full dataset covering 71,940,786 additional entities | |
Why This Data Matters
Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.
Entity Validation at Scale
Google's Knowledge Graph requires consistent entity recognition across validated domains.
- Only 3.58% of domains (62,202 out of 1,738,093) qualify as isReference
- Brands typically need ~30 entity-validated url for a stable Knowledge Panel
- Each niche has unique entity authority patterns
- Generic "authority lists" miss 95%+ of niche-specific opportunities
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